Hair drier control



April 16, 1935.

' R. G. LELAND l'HAIR DRIER CONTROL Filed Jan. 23, 1953 WIWIIII PatentedApr. 16, 1935 UNlTED STATES PATENT OFFICE HAIR DRIER CONTROL Ragnvald G.Leland, New AYork, N. Y. l Application January 23, 1933, Serial No.653,136

' 1 claim. (c1. 34926) This invention relates to a hair drier controland has for an objectr the provision of an improved means forcontrolling the now of hot air from a hair drier to diierent portions ofthe head.

Asis a well known fact, at least ninety per cent of beauty parlorpatrons in dressing their hair have their hair parted either on the leftside or on the right side of the head. This manner of dressing the hairleaves one side of the hair on the head very thin and the other side andback of the head very heavy. The thin side of hair onthe head under theusual hair drier drys in about ten to fteen minutes, while the heavyside takes about thirty to forty minutes to dry.v With this invention,however, the drying of the Vhair on the thin side is slowed up, whilethe drying of the hair on the heavy side and the back is speeded up.

With this invention it is possible orvhair dressers or patrons toregulate the hot air from the hair drier while drying the patrons hair,so that the air flowing from the hair drier can be directed onto anydesired part of the patrons'head in such a way that it will not damagethe hair that is already dried, but will flow the air on the damp partci the patrons head only. The hair will then' dry evenly and quicker asa result of this invention, for with this invention the air reaches thehair through a series of holes, some of the holes being closed off atwill whereby to control and cause the air to come through the holes thatare not closed oli, but that are partly closed ofi to dry the hair inthe selected portions.

This invention protects the patrons from excessive heat which usuallycauses dizziness and much discomfort. In many cases with the presentwell known form of hair drier patrons slide away from underneath thehair drier due to this excessive heat in the thin spot, therebylengthening the time of drying and adding to the expense of operation ofthe drier. This invention protects those portions of the hair that aredry from becoming too dry, which leads to dull lifeless hair and isharmful to the roots of the hair.

A further object of this invention is to provide a means for controllingthe now of the heated air to the hair on the head of the patron at adesired rate, it being possible to allow either a full flow of theheated air or stop it oir" altogether as well as to gradually diminishthe amount of heated air that is allowed to reach the head of thepatron.

With the foregoing and other objects in View, as will hereinarter becomeapparent, this invention comprises the constructions, combinations andarrangements of parts, hereinafter set forth,

disclosed and shown on the accompanying drawing. In this drawing,Y

Figure l is aside elevation of the drier embodying this invention, y

Figure 2 is an enlarged view of the drier partly 5 broken away to showthe sliding heat regulators mounted therein, A

Figure 3 isa sectional view taken on the line 3 3 of Figure 2,

Figure 4 is an enlarged sectional View taken on the line 6 4 of Figure2, and I Figure 5 is a sectional view taken on the line 5 5 of Figure e,the broken lines showing the regulator in closed position.

There is shown Vat l a hair drier of conventional construction in whichthe control means constituting this invention have been installed asshown in dotted outline i I in Figure 1; The hair drier I!) consists ofan air tubeV I I vcontaining a motor l2, a source of electric currentsuch as anelectric cable I3 for the motor I2, as well as for Ythe kairheating unit not shown contained within the air tube II and a support orstand I4. The airtube I I terminates in a head hood I having an innerperforated hood l@ spaced therefrom by means of spacers il and securedthereto by a connecting flange |23 thereby forming a heat circulatvingchamber between the outer hood I5 and the inner perforated hood I6.

The inner hood I6v has a plurality of perforations B9 allowing theheated air from the air tube l! to pass through perforations I9 onto thehair on the head of the patron 29'. Ordinarily the heated air passesthrough the perorations I9 onto the patron 2U without any means forcontrolling the same so that the same amount of air passes through eachof the perforations I9 continuously. In order to control the amount ofair passing through the various holes or perforations I9 in the innerhood I6, a plurality of control plates 26 are provided within the heatcirculating chamber over various portions of the inner hood E6. Asshown, preferably three control plates are provided, one for each sideof the front of the head and' one for the rear of the 45 head, although,as will be obvious, a lesser or greater number or" control plates may beprovided. By locating the control plate 20 within the heat circulatingchamber, the possibility of catching any loose strands of hair betweenthe control plate and the inner hood as the control plates are moved iseliminated. A further advantage is that the circulation of the heatedair beneath the hood over the hair is not interfered with by thepresence of any control plate touching the hair. Each of these plates isoperated in an identical manner to control the amount of air that maypass through that part of the inner hood I6 to that part of the head ofthe patron 20 that is immediately below the particular control plate inquestion. The control plate 20 is provided with a plurality of spacedperforations 2l, the spaced perforations 2l being of the same size asthe spaced perforations I9 on the inner hood I6 and being similarlyspaced. Each plate 20 is provided with a means for closing the holes 2|to be moved into registration with the holes I9 of the inner hood I6, orto be moved partially or completely out of registration therewith. Thismeans in-v cludes a raised boss 22 on the plate 20 which is recessed toreceive the end of a control lever 23 which is secured therein by meansof a set'screw 24. This control lever 23 is square in cross section, aswill be obvious from Figure 5, and projects through a rectangularaperture 25 in the outer hood I5.

A handle knob 26 is secured to thel outer end of the lever 23 by meansof a set screwy 21. As will be apparent, moving the handle knob 26 willcause the lever 23 to move along the rectangular aperture 25 therebycorrespondingly moving the holes 2| in the plate 2B into or out ofregistration with the holes I9 in the inner hood I6. In order to preventthe escape of heated air through the rectangular aperture 25 a guardplate 28 is provided having a square opening 29 through which the lever23 projects, while a spring 30 about the lever 23 exerts the pressurebetween the boss 22 of plate 2U and the guard plate 28, thereby holdingthe guard plate firmly against the inside of the outer hood I 5 andkeeping the rectangular aperture 25 closed at all times. This spring 3Ualso serves the purpose of holding the plate 20 stationary in anydesired position within its limit of movement, thus holding the plate 20with the holes fully or partially closed or completely closed accordingto Wherever the knob 26 may have been set at rest.

As a result of the aperture 25 being rectangular and the lever 23 beingsquare, the plate 20 cannot twist about any axis, but will always travelback and forth over the same path, thereby positively controlling theclosing off of the aperture I9 according to the desired amount. As willbe obvious, each plate 20 is controlled by its own individual knob 26and these knobs 26 may be operated either by the patron 20 herself, orby the hair dresser.

As will be obvious this invention may be manufactured initially as a,part of the hair drier IU or may be easily added thereto by any skilledmechanic. Thus, hair driers now in use in beauty parlors may takeadvantage of this invention by purchasing the completed invention andhaving them install an adjustment in their machine already in use.

The novel features and the operation of this device will be apparentfrom the foregoing description. While the device has been shown and thestructure described in detail, it is obvious that this is not to beconsidered limited to the exact form'disclosed, and that changes may bemade therein within the scope of what is claimed without departing fromthe spirit of the invention.

Having thus set forth and disclosed the nature of this invention, whatis claimed is:

A control means for hair driers having an outer hood and an innerperforated hood forming a heat circulating chamber therebetweencomprising perforated means covering fractional parts of said innerhood, said perforated means being located within said chamber, means forsliding said perforated means over said inner hood so as to bring itsperforations into or out of registration with the perforations of saidinner hood,

said means comprising a, control lever secured to said perforated means,means for operating said control lever, said control means comprising arectangular aperture in said outer hood, said control lever being squarein cross section whereby said control lever may be moved along saidrectangular aperture to correspondingly move said aperture means, andmeans preventing escape of heated air through said rectangular aperture,said air escape preventing means comprising a guard plate encompassingsaid control lever, and spring means encompassing said control lever,said spring means extending frorn said perforated means towards saidouter hood to secure said guard plate against the inside of said outerhood and simultaneously press said perforated means against said innerapertured hood to thus hold said apertured means in any set position.

RAGNVALD G. LELAND.

EPI

